URGENT HELP NEEDED!!! SPACE
Record your observation statements from Space Academy.

When the mass of the sun is larger, Earth moves around the sun at a faster (faster, slower) pace.
When the mass of the sun is smaller, Earth moves around the sun at a slower (faster, slower) pace.
When Earth is closer to the sun, its orbit becomes faster (faster, slower).
When Earth is farther from the sun, its orbit becomes slower (faster, slower).

For each trial, record the orbit number of each planet from the sun. Be sure to indicate the number of planets in the habitable zone after each trial. Create a different configuration of planets for each trial. An example has been supplied for you.

Orbit Number
Planet One Orbit Number
Planet Two Orbit Number
Planet Three Orbit Number
Planet Four Number of planets in the habitable zone Number of planets left in successful orbit
Example: sun's mass 1x
1

3

5

6

1

2

sun's mass 1x—Trial One
1

5

2

3

1

1

sun's mass 1x—Trial Two
1

2

0

0

2

2

sun's mass 2x—Trial One
1

0

0

0

1

0

sun's mass 2x—Trial Two
1

3

2

0

4

0

sun's mass 3x—Trial One
1

2

0

0

2

0

sun's mass 3x—Trial Two
1

0

0

0

1

3

Conclusion:
Your conclusion will include a summary of the lab results and an interpretation of the results. Please answer all questions in complete sentences using your own words.

Using two to three sentences, summarize what you investigated and observed in this lab.
You completed three terra forming trials. Describe the how the sun's mass affects planets in a solar system. Use data you recorded to support your conclusions.
In this simulation, the masses of the planets were all the same. Do you think if the masses of the planets were different, it would affect the results? Why or why not?
How does this simulation demonstrate the law of universal gravitation?
It is the year 2085, and the world population has grown at an alarming rate. As a space explorer, you have been sent on a terraforming mission into space. Your mission to search for a habitable planet for humans to colonize in addition to planet Earth. You found a planet you believe would be habitable, and now need to report back your findings. Describe the new planet, and why it would be perfect for maintaining human life.

The reaction quotient of the reaction is 7.00238.

From the question.

BrCl2 is 0.004150

Br is 0.003660

Cl is 0.00067210

Q={BrCl2}/{Br}{CL2}

Q=0.004150^2/(0.0036660)(0.00067210)

Q= 7.00238

Equilibrium of chemical reaction is the process in which the reaction remain constant and it is either moving backward or forward.

Therefore, The reaction quotient of the reaction is 7.00238

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Considering the Charles's Law, the temperature in the 1 L tank increases.

Charles' Law consists of the relationship that exists between the volume and the temperature of a certain amount of ideal gas, which is maintained at a constant pressure.

This law determines that for a given sum of gas at a constant pressure, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases because the temperature. That is, the volume is directly proportional to the temperature of the gas.

Mathematically, Charles' law is a law that says that when the amount of gas and pressure remain constant, the ratio between volume and temperature will always have the same value:

[tex]\frac{V}{T} =k[/tex]

Analyzing an initial state 1 and a final state 2, the following is true:

[tex]\frac{V1}{T1} =\frac{V2}{T2}[/tex]

According to Charles' law, the volume is directly proportional to the temperature of the gas. So if the volume increases from 250 mL to 1 L, the temperature will also increase.

This is, the temperature in the 1 L tank increases.

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The concentration of the NaOH solution required for the reaction given the data is 0.44 M

H₂SO₄ + 2NaOH —> Na₂SO₄ + 2H₂O

From the balanced equation above,

CaVa / CbVb = nA / nB

(0.1 × 22) / (Cb × 10) = 1 / 2

2.2 / (Cb × 10) = 1 / 2

Cross multiply

Cb × 10 = 2.2 × 2

Cb × 10 = 4.4

Divide both side by 10

Cb = 4.4 / 10

Cb = 0.44 M

Thus, the concentration of the NaOH solution is 0.44 M

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Answer:

 hydrogen gas will occupy 0.0374 liters when is cooled to 83 °C.

Explanation:

• T1 =602 °C = 875 K

• V1 =92 mL = 0.092 L

0.092L/875K= 1.05×10-⁴L/K

vf =nR/P T f= 1.05×10-⁴L/K ×356K

=0.0374 L

Answer:

B and D

Explanation:

6 abundant elements-

1. oxygen

2. carbon

3. hydrogen

4. nitrogen

5. sulfur

6. phosphorus

Answer:

Phosphorus and Oxygen

Explanation:

Carbon is the most abundant element in our universe then comes oxygen then comes hydrogen.

Sulfur and nitrogen are also counted among most abundant elements

Option B and D are correct

Answer:

4.041 moles C₂H₆

Explanation:

To convert from grams to moles, you first need to determine the molar mass of C₂H₆. The molar mass is the combination of the atomic masses times the quantity of each element present in the molecule. The atomic masses usually be found on the periodic table. They represent how much the element weighs per one mole.

Carbon (C) Atomic Mass: 12.01 g/mol

Hydrogen (H) Atomic Mass: 1.008 g/mol

Molar Mass (C₂H₆): 2(12.01 g/mol) + 6(1.008 g/mol)

Molar Mass (C₂H₆): 30.068 g/mol

Now that you have the molar mass, you can multiply this ratio to the given value. Keep in mind that in order to go from grams to moles, the numerical value should be place in the denominator of the molar mass ratio. This allows for the cancellation of the unit 'grams'. The final answer should have 4 significant figures because the given value also has 4 sig figs.

121.5 grams C₂H₆              1 mole
--------------------------  x  ------------------------  =  4.041 moles C₂H₆
                                     30.068 grams

Answer:

4.87 g

Explanation:

The formula between the number of moles, mass and Mr can be used to find the mass of barium.

Number of moles = mass ÷ Mr

So, mass = number of moles × Mr

  Mr of Ba = 137.3

∴ Mass = (3.55 × 10⁻²)  × 137.3 = 4.87 g

Answer:

Calcium oxide + strontium hydroxide → Portlandite + strontium oxide.

ie... Cao+ Sr(oH)2 = CA (oH)2+ Sro

Answer:

Because the brain is connected.

Explanation:

The given alkyne is Option A 3-heptyne

The hydrocarbon having at least one C-C triple bond is called an Alkyne.

It has the general formula of   [tex]\rm C_n H_{2n+2}[/tex] .

In the question it is being mentioned that it is an alkyne so there will be a triple bond and not a double bond.

It has been asked in the question that

CH3CH₂C ≡  CCH₂CH₂CH3 is which alkyne from the given option.

The counting of the Carbon chain is done from the left side and the Triple bond is at the 3rd Carbon , so 3-heptyne .

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Answer:

1.) There are 6 carbons in the longest possible parent chain (hex-). Since there is a double bond, this is an alkene.  The lowest possible carbon the double bond consists of is the 2nd carbon. There is also a methyl group on the 2nd carbon. All together, this makes the structure: 2-methyl-2-hexene.

2.) There are 9 carbons in the longest possible parent chain (non-). The lowest possible carbons the methyl groups are on are the 3rd and 5th carbons. The lowest possible carbon the ethyl group is located on is the 4th carbon. Remember, branches are listed alphabetically. All together, this makes the structure: 4-ethyl-3,5-dimethylnonane.

3.) There are 7 carbons in the longest possible parent chain (hept-). There is a triple bond, making this an alkyne. The lowest possible carbon the triple bond consists of is the 2nd carbon. The lowest possible carbon the methyl group is on is the 4th carbon. All together, this makes the structure: 4-methyl-2-heptyne.

4.) There are 10 carbons in the longest possible parent chain (dec-). The lowest possible carbon the propyl group is on is the 5th carbon. All together, this structure is: 5-propyldecane.

5.) There are 4 carbons in the longest possible parent chain (but-). The lowest possible carbon the methyl group is on is the 2nd carbon. All together, this makes the structure: 2-methylbutane.

6.) There are 5 carbons in the longest possible parent chain (pent-). There is a double bond, making the molecule an alkene. The lowest possible carbon the double bond consists of is the 2nd carbon. The lowest possible carbon the methyl group is on is the 2nd carbon. All together, this makes the structure: 2-methyl-2-pentene.

Answer:

2H2O+O2-2H2O2

Explanation:

TO BALANCE equation both side should be equal

The AH for the reaction is -137 kJ

Enthalpy of formation is the energy required by reactants to convert into products . It value can be positive or negative depending on the type of reaction, Endothermic or Exothermic.

In the question 3 step reaction is given

C₂H4 (g) + 3 O₂ (g) → 2 CO₂ (g) + 2 H₂O (1)   AH = - 1411. KJ

2 C₂H6 (g) + 7 O₂ (g) → 4 CO₂ (g) + 6 H₂O (1)   AH = - 3120. KJ

2 H₂ (g) + O₂ (g) → 2 H₂O (1)     AH = -571.6 kJ

To determine the enthalpy of formation for

C₂H4 (9) + H₂ (9)→ C₂H6 (g)

Adding reaction 1 and (1/2) 3 will give

C₂H4 (g) + 7/2 O₂ (g) + H₂ (g) ----> 2 CO₂ (g) + 3H₂O AH = -1696.8

For the second reaction

We will reverse the reaction and multiply it by 1/2

2 CO₂ (g) + 3 H₂O (1) -->  C₂H6 (g) + 7/2 O₂ (g)  AH = +1560

Adding the two new reactions.

C₂H4 (9) + H₂ (9)→ C₂H6 (g)    AH = -137 kJ

Therefore The AH for the reaction is -137 kJ

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Answer:

Explanation:

Comment

A: is in group 1. The properties are quite similar

B: the choices for answer B are in column or group 2. They too will have similar properties.

C: the choices there are in group 18. They do have similar properties.

The answer is D.

Note: group means the same thing as column. They are vertical.

Answer:  4

Explanation:

There is a double covalent bond between the carbon atoms of the hydrocarbon, so the ending must be 'ene'.

A chemist most likely study which type of fuel contributes the most to smog.

A chemist is a scientist who majors in or studies chemistry.

A chemist studies the composition of matter, the changes that matter undergo as well as the properties and uses of matter.

Matter can undergo physical or chemical changes.

The consumption of fuels and how they affect the environment will be of interest to a chemist.

Therefore, a chemist most likely study which type of fuel contributes the most to smog.

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Answer:

This is a correct answer. 2HCL + Fe = FeCl2 + H2

Answer:

c. one must have a higher kinetic energy than the other system

Answer: A positively charged ion means that there are more protons than electrons. For example, the calcium ion has 2 more protons than electrons.

Explanation:

Metallic conductors contain free electron for conduction of electricity and is a good conductor of heat and electricity

electrolytic conductors contain ions for conduction

Answer:

ha djd sidi dj sjejeisns

Answer:

10.41 g

Explanation:

ml and   cm^3   are generally interchangeable

15 cm^3     *   . 694  g/cm^3 =  10.41 g

Answer:

0.82 M

Explanation:

You have been given moles and volume (in mL). To find the molarity of the solution, you need to (1) convert mL to L and then (2) plug moles and volume into the molarity formula.

985 mL / 1,000 = 0.985 L

Molarity (M) = moles / volume (L)

Molarity = 0.81 moles / 0.985 L

Molarity = 0.82 M

Based on the dilution formula, 0.1 mL of the stock solution of the enzyme is required to prepare a 50-fold diluted enzyme in 0.01 M HCl.

The 50-fold dilution of the stock enzyme solution can be done by using the dilution formula to determine the given volume of the stock solution required.

The dilution formula is given below:

where:

From the given data for the enzyme dilution;

C1 = 1

C2 = 1/50 = 0.02

V1 = x

V2 = 5 ml

Making V1 subject of formula in the dilution formula:

V1 = C2V2/C1

V1 =  0.02 * 5/1 = 0.1 mL

Therefore, 0.1 mL of the stock solution of the enzyme is required to prepare a 50-fold diluted enzyme in 0.01 M HCl.

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Answer:

need more info

Explanation:

i think so we need more info

Answer:

B.

Explanation:

The amount of space between the particles in a medium reduces as its density rises, which causes light to bend. 2. This impact is highest for light that is close to the medium's surface and weakest for light that is far away from the medium's surface.

The molecular formula of the compound is C₄H₈O₄.

The molecular formula is the exact whole number ratio of the compound's elements. The empirical formula, as well as the molecular mass, are combined to generate the molecular formula.

Let's assume that the compound contains:

The empirical formula of the compound is:

C               H           O

40.6/12    5.1/1         54.2/16

3.38          5.1           3.38

Divide by the smallest value

3.38/3.38  5.1/3.38  3.38/3.38

1                  1.5≅ 2       1

= C₁H₂O₁

The empirical formula weight = (1 × 12) + (2 × 1) + (1 × 16)

The empirical formula weight = 30 g/mol

Molecular formula = (118.084 g/mol)/30 g/mol

Molecular formula = 3.94 ≅ 4

Therefore, the molecular formula for the compound is C₄H₈O₄.

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Answer:

4 cups?

Explanation: